Glazing-bar.



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GLAZING BAR.

APPLICATION FILED MAR. 22, 1909.

963.32% Patented June 14, 1910.

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GLAZING BAR.

APPLICATION FILED MAR. 22, 1909.

961;?28u Patented June 14, 1910.

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515% z} 42/ @2 Wmw? attoznex CLAUDE A. MCGINNIS, OF ATLANTA, GEORGIA, ASSIGNOR TO DOWMAN-DOZIER MANU- FACTURTNG- COMPANY, OF ATLANTA, GEORGIA, A CORPORATION OF GEORGIA.

GLAZING-BAR.

Specification of Letters Patent.

Patented June 14, 1910.

Application filed March 22, 1909. Serial No. 485,057.

To all whom it may concern:

Be it known that 1, CLAUDE A. MoGinnis, citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Glazing-Bars, of which the following is a specification, reference being had therein to the accompanying drawing. 7

My invention relates to fire-proof glazing bars of sheet metal, such as may be used in window sash or in other situations where analogous plates or sheets of glass are to be held. It is desirable that such bars should be light, inexpensive, and rather fire-proof than fire-resisting, under ordinary fire conditions, or, in other words, that bars at a bright red heat should maintain approximately normal shape for a long period of time, or that when glazed with wire-glass a window, for example, will remain practi cally intact so long as the glass itself is not melted out, and shall so remain even when the parts are suddenly cooled by water. To secure these results is the general object of this invention.

In the accompanying drawings, Figure 1 shows two intersecting bars, made in accordance with my invention, the line of sight being perpendicular to the plane of the bars. Fig. 2 shows the opposite side of the same bars. Fig. 3 shows the same devices, looking in the direction of the arrow in Fig. 1. Fig. A is a section on the line H, Fig. 1. Figs. 5, 6 and 7 are perspective views of detached bar members.

For convenience, the bars are designated as horizontal and vertical, respectively.

In these figures, A and B represent two constituent members of the vertical bar, A being the one which in a window sash would ordinarily be upon the inner face of the window, and B the corresponding outer member.

C and C represent correspondingly located members of the horizontal bar.

The bar B is formed by bending a metal sheet, of proper form and of any length upon parallel, longitudinal lines, to form a broad central face or web B, two equally and oppositely inclined faces or webs B two oppositely and inwardly extending webs B parallel to B, two parallel webs B forming right angles at B with the webs B", and two inwardly turned overlapping terminal webs B Before the sheet is thus bent it is cut away in such manner that when bent as described the hollow member formed has one or more transverse openings B through which may pass a closely fitting horizontal member or members C. These latter members are formed in the same manner as the members B, but the parallel webs C are narrower than the corresponding webs B* so that in passing through the latter a considerable portion B may be left intact. Upon the opposite side the broad web B, which is not cut, gives ample strength. The inside member A of the vertical bar is similarly formed, having a central web A, with narrow perpendicular webs at each side, continuous at A with offsets A parallel to A, outwardly extending curved portions A", webs A perpendicular to the plane of A and between rectangular bends A and A inwardly extending webs A parallel to A and at the inner edges of which the sheet is bent at right angles and then doubled back at A to form webs A extending to the offsets A where the sheet is bent outward at right angles to form terminal webs A the outer edges of which meet the curved webs A. The webs A are at such distance apart that they may fit over the rib formed by the webs B" of the member B, and the member A is cut away at A to fit over the rib formed by the webs C of the horizontal member passing through the web B.

The inside members 0 of the horizontal bar are similar in construction to the members A, and before bending they are so cut that when bent, their ends fit over the sides of the member A, as seen in Fig. 1, with which these members appear to form a mitered joint although in fact the member A is intact at this point. Both these horizontal bar members and the vertical bar members are secured together at suitable intervals by bolts E (Fig. 4) passing through the webs C C to engage preferably tubular nuts E having broad heads E made flush with the outer face of the member O, as shown, by

ressing the latter inward to receive them. i/Vhen all these bolts are screwed home, the whole structure thus far specifically described is made rigid, with the doubled webs A pressed against the webs B", the offsets A against the webs A the web A against the webs B and the margin of the curved portion A against the terminal webs O It is to be noted that when the glass is in place every member is so held that it cannot open out under the influence of heat; that no member can move away from the glass; and that there are dead air spaces in both components of each bar, so that heat is not readily transmitted in either direction from one component to the other. The practical result is that the bars remain approximately in shape and effectively strong even when long subjected to high heat. It is also of practical moment that the structure, aside from the bolts, is entirely of sheet metal, light and readily made by machinery, all the parts being cut by dies and then simply bent along parallel lines only, although the moldings have the usual appearance and appear to be mitered at the angles.

\Vhat I claim is:

1. The combination with a hollow sheet metal glazing bar having on one side a longitudinal rib and on the opposite side a broad, plane web portion extending from end to end of the same, of a second similar and like turned narrower bar passed transversely through the first and having the outer face of its plane web portion approximately in contact with the inner face of the corresponding part of the first bar; whereby the two webs are brought into approximately the same plane while the first bar is left with strong integral inner and outer connections between its parts upon opposite sides of the transverse bar.

2. A two-part glazing bar consisting of a hollow member having a rib on one side, a second oppositely turned hollow member having a rib adapted to telescope the rib of the companion member and further having the two webs of its rib extended inward to the opposite wall of its own body, and means for rigidly connecting the two members.

3. The combination with two oppositely turned hollow glazing bar members provided on their meeting sides with telescoping ribs, of an analogous transverse hollow member passing through the two between their outer faces, and similar companion members having their ribs telescoping with the rib of said transverse bar and their ends coped over the corresponding member of the primary bar.

l. A sheet metal glazing bar consisting of two hollow sheet metal members, the bodies of which are to meet the glass, each provided upon its inner side with a rib telescoping with a rib of its companion, the inner rib extending to the opposite side of the companion member, and bolts binding the two members together.

5. The combination with a hollow sheet metal member having upon. one side a rib with walls at some distance apart and overlapped at the free side of the rib to close the same, of a tubular nut having its head countersunk in the member upon the side opposite the rib and its inner end bridging the space between the rib walls, a second analogous bar member oppositely turned and having its open rib telescoped over the rib first mentioned, and a bolt passing through the second member, between the walls of both ribs, and enga ing said nut.

In testimony whereof I afiix my signature in presence of witnesses.

CLAUDE A. MOGINNIS.

Witnesses:

EUGENE Donn, G. P. DOZIER, ARTHUR THURMAN. 

